320i 2001, 120K, the car every time when moving into Reverse... the back of the car lifts, harder when its cold. It goes back with no problem its just that doesnt act the same when you put the car in N or PD. Do you think its a tranny problem? has anyone experience this? I just bought the car 2 months ago, I have changed so far the loger intake boot, the fan clutch, the AC compressor, Castrol Synt Oil, Oil Filter, Air Filter, Cabin Filter I am going to replace the Fuel Filter on saturday.

Please help, I am thinking to sell the car because of this reverse problem, I dont have a stealership close, the closest is 1,200 miles away, My friends that help me every saturday work on Mercedes Benz shop and they have the tools, and my only resource is Here.